Home / 2,851.44-3,934.58-1,656.38

Finding the Fourth Proportional to 2,851.44, 3,934.58 and 1,656.38

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Solution

The fourth proportional to 2,851.44, 3,934.58 and 1,656.38 is: 2,285.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,851.44 : 3,934.58 = 1,656.38 : x
  2. Step 2: Convert to fraction form
    2,851.44/3,934.58 = 1,656.38/x
  3. Step 3: Cross multiply
    2,851.44x = 3,934.58 × 1,656.38
  4. Step 4: Simplify right side
    2,851.44x = 6,517,159.62
  5. Step 5: Solve for x
    x = 6,517,159.62/2,851.44
  6. Step 6: Final answer
    x = 2,285.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.